There's a much better way to say this that isn't controversial or link-bait. It's also very old.
"The devil is in the details."
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That's really the contrapositive, though. That proverb says that "not understanding the details will lead to failure", but the article is saying "master the details if you want to win".
Different set of connotations. We want to find success, not Satan, in the specifics.